label on detail/section views

Hi, I am adding associative text to the views (just below labels of the view). I just want to avoid duplication(Overlapping)of notes, after running program 2nd time. I cant put the logic if particular note is present(bcoz my note used to change when i move the View) I am thinking to Append text (Egection A-A-test) via. settings->section->label->customized view label. I can't see any function/methods to set this programmatically. Any help Appreciated. TAK